Saw-set



(No Model.)

M. B. ,W. WHEELER.

SAW SET. I

No.323,005. I Patented July 28, 1885 divwesaes" @127 I mrnn MOSES B. V.WHEELER, OF WESTPORT, CONNECTICUT.

SAW-SET.

5PECIFICATION forming' part of Letters Patent No. 323,005, dated July28, 1885.

Application filed April 17, 1885. (No model.)

To aZZ whom, it may concern.-

Be it known that I,l\/IOSES B.W.WHEELER, a citizen of the United States,residing at \Vestport, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements inSaw-Sets; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to the class of saw-sets in which the desiredinclination is given to the teeth by an anvil and block carried,respectively, by handles which cross each other and are pivotedtogether, the device being operated by the compression of the handles.

The general object of my invention is to simplify and improve theconstruction,to produce a device which shall be easy to operate,impossible to get out of order, and in which the cost of manufactureshall be reduced to the minimum.

WVith these ends in View I have devised the novel construction which Iwill now describe, in connection with the accompanying drawings, formingpart of this specification, in which- Figure 1 is a side elevation ofthe device complete. Figs. 2 and 3 are respectively top and bottom planviews of the operative parts of the device; Fig. 4, a plan view of theblock; Fig. 5, a rear view of the gage detached; Fig. 6, an elevation ofthe block detached; Fig. 7, a side elevation illustrating certainmodifications in construction which may be adopted, if preferred; andFig. 8, a slight modification in the shape of the anvil.

Similar letters indicate the same parts in all the figures of thedrawings.

A A are the handles, B the pivot, and C a spring for holding the deviceat its opened position, as shown.

D is the anvil,which is formed at the end of one of the handles, and itconsists of a flat surface having a rounded edge, E, which is preferablyformed by brazing in a piece of chilled iron or steel wire, as indicatedat F, which extends across the anvil. Back of the rounded edge thehandle is hollowed out, as shown at D, so as to avoid compressing theteeth of the V saw when in use.

In Fig. 8 I have shown an anvil with a square edge, which may be used,if preferred.

G is a gage, against which the ends of the teeth rest when in use, andwhich thus acts to determine the depth of the set upon the teeth. Theexact arrangement of this gage is of course not an essential feature ofmy invention. I preferably, however, construct it as shown in thedrawingsthat is, to fit outside of the anvil, and to partially embraceit, so that it will slide freely thereon without displacement.

G indicates an opening in the gage, which permits the block to pass asfar back relatively to the gage as may be necessary to produce anydesired effect.

The gage is provided with a slot, H, and is secured at any desiredposition by means of a set-screw, K, which passes through the slot H andengages the anvil. The other handle has at its end adownwardly-projecting clamp, L, the end of which is preferably made tolie parallel with the surface of the anvil when the parts are in theclosed position. Back of this clamp is an adjustable block, M,whose faceis inclined downward from front to back relatively to the plane of theanvil, and which compresses the teeth-at the edge of the anvil, theaction being to set the teeth by bend- So ing them over the roundededgeof the anvil when the handles are compressed. The shank of this blockpasses through a slot, N, just back of the lug, the shank being made anysuitable shape to prevent it from turning in 8-5 the slot, as shown inFig. 6. Projecting upward from the end of the shank is a screwthreadedstud, O, carrying a nut, I, by which the block is secured at any desiredposition. The adjustment of this block relatively to the 0 gagedetermines the amount of set given to the teeth. It will of course beapparent that the farther over the rounded edge of the anvil the blockis setthat is, toward the pivotthe greater will be the set given to theteeth. By reference to Figs. 1 and 4 it will be seen that thebearing-surface of the block is made in the form of a triangle, and thatit is placed with the apex toward the point of the teeth. I am thusenabled to use an ordinary-sized device upon very fine saws withoutdangerof the block coming in contact with the teeth upon either side ofthe one which is being set.

The operation is as follows: Having set the gage at the proper positionto give the desired depth of set, and the block at the proper positionto give the desired amount of set, the device is ready for use. Theblade of the saw is secured in a vise, or in any suitable manner. Theblade enters between the block and the clamp and anvil, parallel withthe latter. Each alternate tooth is acted upon, and is bent over theedge of the anvil by the block, the blade of the saw being held betweenthe clamp and the anvil. The tooth, however, is not compressed betweenthe block and the anvil, owing to the hollow D,whieh receives it, thisbeing a very valuable feature in many kinds of saws.

In the modification illustrated in Fig. 7 I have shown the block asoperated by a compound lever, the parts A A of which are pivoted to thehandle carrying the anvil. T have also shown lug L and the block as madein one piece, which is adjustable in the same mannor that the block isin the other form.

1. The anvil having a rounded edge formed I by brazing in a piece ofchilled iron or steel wire and an adjustable gage secured to said anvil,in combination with a clamp and an adjustable block, substantially asdescribed.

2. The anvil having arounded edge of chilled iron or steel and back ofsaid edge a hollow, D, in combination with a clamp and an adjustableblock which acts to bend the teeth of a saw over the edge of the anvil,but without compressing the teeth which lie in said hollow.

In testimony whereof I affix my signature in presence of two witnesses.

MOSES B. WV. WVHEELER.

\Vitnesses:

A. M. XVoosTER, J. T. WOOSTER.

